I've noticed over the last month or so that my boy Spangle (around 18 months old) has a kind of weird appearance at the end of his tail. Instead of stopping bluntly, in a kind of rounded point (as I've seen in all other rats), it has a very small spiky part coming out of the end. At first I was worr...

Hello all! I feel the need to give some context for this problem, so I'll try to be quick. I got 2 young male rats around a year and a half ago from a pet store (which I regret - will definitely get from private breeders/rescue in future). One (Varjak) was very easily socialised and became very frie...